Krill oil is made from a very small crustacean called krill, also known by its scientific name as Euphausiacea. This animal is found in high numbers in the cold waters of Antarctica and is used for various purposes.

On the other hand, the consumption of this oil is quite large, because it provides the necessary levels of omega 3 and antioxidants that improve the performance of the immune and circulatory systems. In addition, its intake also helps reduce inflammation of the joints and reduces high levels of bad cholesterol in the body. Therefore, it is quite beneficial for the human body.

Krill Oil Health Benefits

When talking about the benefits of krill oil, it is necessary to bear in mind that these are due to the various components that the crustacean from which the oil is extracted has; which can be useful to a large number of people. Among the various benefits that can be obtained from the use or consumption of krill oil, the following stand out:

Increases attention and concentration

Multiple studies have been conducted on the effects of krill in children with dyslexia, autism, and attention deficit / hyperactivity disorders; where it should be noted that in most cases an improvement was noted with respect to the concentration and attention that the children presented after starting to ingest the oil.

Similarly, adults have also stated that when taking krill supplements they do not require a nap in the afternoon. On the contrary, they can better concentrate on activities that require high complexity and mental effort.

Improves the appearance of skin, hair and nails

By containing antioxidants, krill oil is able to provide protection against damage and inflammation caused by ultraviolet rays on the surface of the skin. In addition, due to its components it can also be used as a natural wrinkle reducer.

On the other hand, improvements in the appearance of nails and hair have also been observed after regular consumption of this oil, since omega 3 prevents hair loss and strengthens the nails.

Reduces cholesterol levels

A study conducted by the  University of Montreal ,  McGill University and the  Riverview Medical Center  in Montreal, revealed the effects of krill oil on cholesterol in the human body. In this study, blood lipid values, LDL, HDL and triglycerides were examined before and after the consumption of krill oil; managing to show that it is capable of regulating the levels of good and bad cholesterol.

Therefore, by consuming krill oil regularly it is possible to avoid lipid disorders, hypercholesterolemia, strokes, heart disease, among others.

Combat the symptoms of premenstrual syndrome

Another study showed that the components present in krill oil can control the symptoms that occur in those patients who suffer from Premenstrual Syndrome, as well as reduce the pain, colic and inflammation that are experienced during the days of menstruation.

Improves joint health

Most people consume significant amounts of omega 6, a component found in foods such as safflower oil, sunflower oil, vegetable oils, hydrogenated oils, eggs, among others. However, the consumption of omega 3 is usually quite low in the average individual, therefore, this usually causes imbalances that end up producing inflammatory diseases, which tend to attack the joints.

Therefore, to avoid problems such as osteoarthritis, arthritis, bursitis, dislocations, or others, it is necessary to consume the necessary amounts of omega 3, which can be found in krill oil, as well as in other foods of maritime origin.

Krill oil properties

As previously mentioned, krill oil contains an important amount of nutrients, among which are omega 3, astaxanthin, antioxidants, vitamins, among others. It should be noted that each nutrient and vitamin has an important function within the body, which are detailed below.

Vitamins A and E

Although found in small amounts, krill oil contains vitamin A, which plays an important role in vision and cell reproduction. In addition, it protects and strengthens the immune system, while improving the functioning of organs such as the heart, kidneys, lungs, among others.

It also contains vitamin E, known as an excellent natural antioxidant that protects and helps in the interaction of cells, fights viruses and bacteria. Also, vitamin E dilates blood vessels and prevents clots from forming.

Omega 3

As already mentioned, the active component of krill oil is omega 3, which contributes to the regeneration of cell membranes and the development of the central nervous system. All this causes blood pressure and blood clotting to be regulated, so that inflammations in the body decrease.

In addition, thanks to the EPA and DHA molecules of omega 3, both the immune system and brain function work much better.


The antioxidants and flavonoids contained in krill oil have an important effect on the neutralization of free radicals, which prevents oxidative stress; a problem that could seriously damage the functions of the central nervous system. Therefore, by ingesting antioxidants in nutritional supplements such as krill oil, health is optimized while delaying premature aging, thus increasing heart, immune system and memory health.

Relevant aspects of krill oil

There are certain aspects that are highly relevant with respect to krill oil, so they must be known to ensure that you take advantage of each of the benefits of this nutritional supplement. Among the relevant factors of krill oil are the following:

Its trade does not imply damage to the animal ecosystem

Although krill represents the food base of species such as fish, penguins, whales, seabirds, among other animals. It is necessary to clarify that together with plankton, krill is a renewable source of food, thanks to the fact that more than 670 million tons are reproduced per year. Therefore, the industrial trade of this oil does not imply a negative impact on the environmental balance of the Antarctic.

How much is krill tall and heavy?

The length of the crustacean is between 8 and 70 mm, the tail being the most important food part. Before reaching the maximum 70 mm in length, the krill goes through 10 molts. On the other hand, in the world there are more than 90 species and only in Antarctica there is a biomass composed of krill that reaches 500 million tons, which is why it is considered one of the most abundant animals on the planet.

Krill oil; where to buy

To acquire krill oil it is possible to go to pharmacies, herbalists, supermarkets, as well as online stores such as Ebay or Amazon. On the other hand, it is necessary to clarify that it is recommended to choose brands that ensure and validate the quality standards of the product.

Correct dosage of krill oil

To start taking krill oil, it is recommended that 2 to 4 capsules of 500 mg be ingested during the first two weeks before each meal. However, it is necessary to clarify that it should not exceed 2000 mg per day.

However, if you are consuming the oil naturally, it is advisable to eat two tablespoons before breakfast; always taking into account the instructions for use contained in the product, or the recommendations of a doctor.

Krill oil: contraindications

Like other nutritional supplements, the consumption of krill oil is contraindicated in certain cases, this is because its intake may not be favorable for some people. Among the cases in which the consumption of krill oil is prohibited are:

People allergic to shellfish

The consumption of krill oil is totally prohibited for those who suffer from allergies and / or hypersensitivity to shellfish or marine foods, this is because they could present the typical symptoms of such pathologies.

Pregnant or breastfeeding women

Although there are no known risks related to the consumption of krill oil during pregnancy and / or lactation process, it is necessary to take into account that this supplement should not be consumed without the approval of a specialist doctor.

Individuals taking anticoagulant or diabetes medications

Krill oil has several components that can interact negatively with diabetes medications, as well as blood thinning drugs. Therefore, it is recommended to consult with a doctor before adding this supplement to the nutritional diet.

Krill oil: side effects

Although krill oil is considered a safe product to consume, as it does not usually cause side effects, it is possible that it causes some people:

  • Acidity.
  • Bad breath.
  • Sickness.
  • Diarrhea.
  • Stomach ache.

Conclusion, is the consumption of krill oil recommended?

Far from being a product that can harm health, krill oil is a nutritional component that serves to combat and prevent an important variety of problems in the body. However, it is recommended that before using it you consult a specialist doctor, in order to obtain precise indications of how this supplement should be ingested.

Samantha Robson
 | Website

Dr. Samantha Robson ( CRN: 0510146-5) is a nutritionist and website content reviewer related to her area of ​​expertise. With a postgraduate degree in Nutrition from The University of Arizona, she is a specialist in Sports Nutrition from Oxford University and is also a member of the International Society of Sports Nutrition.

Similar Posts

Leave a Reply

Your email address will not be published. Required fields are marked *